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Use this form to apply for a replacement Declaration of Intention; Naturalization Certificate; Certificate of Citizenship; or Repatriation Certificate; or to apply for a special certificate of naturalization as a U.S. citizen to be recognized by a foreign country.

The clerk of any court conducting naturalization activities under Section 339 of the Immigration and Nationality Act (8 U.S.C. 1450) and 8 CFR 339 uses this form to provide information to USCIS to finalize the record process regarding individuals naturalized and to determine payments to the courts as provided by law.

Use this form if you are a permanent resident and want to declare your intent to become a U.S. citizen. This form is not required for naturalization, but may be required by some states if you wish to conduct certain business with that state.

Use this form if you are a lawful permanent resident who must leave the United States for a period of one year or longer for certain employment purposes and you want to preserve your status as an immigrant in order to pursue naturalization.

An American firm or corporation (or a subsidiary of that firm or corporation) where you engage in developing the foreign trade and commerce of the United States.

An American firm or corporation engaged in the development of foreign trade and commerce of the United States, where you protect the property rights outside the United States of that American firm or corporation.

A public international organization of which the United States is a member by treaty or statute.

A denomination or mission that has a bona fide organization in the United States in which you perform ministerial or priestly functions or your sole role is a clergyman or clergywoman, missionary, brother, nun, or sister.

Note: If you are eligible for naturalization under section 319(b) of the Immigration and Nationality Act (INA) because you are married to a U.S. citizen working for certain organizations overseas, you are exempt from establishing the naturalization residency and physical presence requirements. Therefore, you are not required to file Form N-470. Please visit uscis.gov/n-400 for more information on applying for naturalization under section 319(b) of the INA.

Public Law 101-249 provides for the granting of U.S. citizenship to an alien or noncitizen national whose death resulted from injury or disease incurred on active duty with the U.S. armed services during specified periods of military hostilities. Posthumous citizenship is an honorary status commemorating the bravery and sacrifices of these persons; it does not convey any benefits under the Immigration and Nationality Act to any relative of the decedent. If your application is approved, you will be issued a Certificate of Citizenship (N-645) in the name of the decedent. The certificate establishes only that the person is considered to be a citizen of the United States as of the date of his/her death, and is invalid for all other purposes. Note that the current Form N-644 edition has updated instructions regarding eligibility to apply for a Certificate of Posthumous Citizenship. One important change is that persons who die as a result of active-duty service in the U.S. armed services on or after September 11, 2001, have become eligible for U.S. citizenship. For veterans who died several years ago, another important change is the extension of the filing deadline to November 2, 2005. Until further notice, Form N-644 applications submitted on the previous (5/30/91) edition will also be accepted.

Use this form if you are applying for U.S. citizenship and need to request an exception to the English and civics testing requirements for naturalization because of physical or developmental disability or mental impairment.